Sub-1 GHz RF communication software expansion for STM32Cube

X-CUBE-SUBG1 is an expansion software package for STM32Cube. The software runs on the STM32 and includes drivers that recognize the Sub-1 GHz RF communication for SPIRIT1 modules SPSGRF (SPSGRF-868 or SPSGRF-915). The expansion is built on STM32Cube software technology to ease portability across different STM32 microcontrollers. The software comes with examples of implementation of P2P and WM-Bus communication protocols, running on a SPIRIT1 module SPSGRF expansion board (X-NUCLEO-IDS01A4 or X-NUCLEO-IDS01A5) when connected to a NUCLEO-F401RE or NUCLEO-L053R8. WM-Bus communication protocol is available for X-NUCLEO-IDS01A4 only.

Key Features

  • Firmware package to kick-start development using SPIRIT1 expansion boards
  • Complete middleware to build wireless meter bus (WM-Bus) applications using the WM-Bus library (X-NUCLEO-IDS01A4 only)
  • Sample point-to-point communication application for simple buffer transmit and acknowledgement implementation
  • Low-power optimizations for the STM32 MCU family
  • Easy portability across different MCU families thanks to STM32Cube architecture
  • PC-based application (Windows® ) for WM-Bus to log meter data
  • Free user-friendly license terms
  • Sample implementation available on board X-NUCLEO-IDS01A4 or X-NUCLEO-IDS01A5 when connected to NUCLEO-F401RE or NUCLEO-L053R8




Technical Documentation

Product Specifications
Description Version Size
DB2556 DB2556: Sub-1 GHz RF communication software expansion for STM32Cube 2.0 229 KB
User Manuals
Description Version Size
UM1892 UM1892: Getting started with the X-CUBE-SUBG1 for WM-Bus communications based on Sub-1 GHz RF expansion board 1.0 2 MB
UM1904 UM1904: Getting started with the software package for Point-to-Point communications using SPIRIT1 sub-1GHz modules in X-CUBE-SUBG1, Expansion for STM32Cube 1.0 1 MB

Publications and Collaterals

Description Version Size
STM32 Open Development Environment Brochure 15.10 4 MB


License Agreement
Description Version Size

Tools and Software

Embedded Software
STM32 Open Development Environment
MCUs Embedded Software

Get Software

Part Number Software Version Marketing Status Supplier Order from ST
X-CUBE-SUBG1 1.2.0 Active ST


Support & Community